Gene Rv3499c (mce4)
in Mycobacterium tuberculosis H37Rv
General annotation
| Type | CDS |
| Function | Unknown, but thought to be involved in host cell invasion. Predicted to be involved in lipid catabolism. |
| Product | Mce-family protein Mce4A |
| Comments | Rv3499c, (MTV023.06c), len: 400 aa. Mce4A; belongs to 24-membered Mycobacterium tuberculosis Mce protein family (see citations below), highly similar to Mycobacterium tuberculosis proteins P72013|MCE1|Rv0169|MTCI28.09|mce1A (454 aa); O07789|MCE2|Rv0589|MTCY19H5.33c|mce2A (404 aa); and O53967|MCE3|Rv1966|MTV051.04|mce3A (425 aa). Also similar to others e.g. Q9F356|SC8A2.07c putative secreted protein from Streptomyces coelicolor (418 aa), FASTA scores: opt: 619, E(): 7.8e-30, (32.4% identity in 352 aa overlap); Q9S4U5|MCE1 mycobacterial cell entry protein from Mycobacterium bovis BCG (454 aa), FASTA scores: opt: 529, E(): 2.1e-24, (30.35% identity in 448 aa overlap); Q9CD14|MCE1A|ML2589 from Mycobacterium leprae (441 aa), FASTA scores: opt: 515, E(): 1.4e-23, (28.35% identity in 430 aa overlap); etc. Contains a possible N-terminal signal sequence. Note that previously known as mce4. Predicted to be an outer membrane protein (See Song et al., 2008). |
| Functional category | Virulence, detoxification, adaptation |
| Proteomics | Identified in the cell membrane fraction of M. tuberculosis H37Rv using 2DLC/MS (See Mawuenyega et al., 2005). Identified by mass spectrometry in whole cell lysates of M. tuberculosis H37Rv but not the culture filtrate or membrane protein fraction (See de Souza et al., 2011). |
| Transcriptomics | mRNA identified by microarray analysis and up-regulated after 4h of starvation (see Betts et al., 2002). |
| Mutant | Non-essential gene for in vitro growth of H37Rv in a MtbYM rich medium, by Himar1 transposon mutagenesis (see Minato et al. 2019). Non-essential gene for in vitro growth of H37Rv, by analysis of saturated Himar1 transposon libraries (see DeJesus et al. 2017). Non essential gene by Himar1 transposon mutagenesis in H37Rv strain (see Sassetti et al., 2003). Required for growth in C57BL/6J mouse spleen, by transposon site hybridization (TraSH) in H37Rv (See Sassetti and Rubin, 2003). Non-essential gene for in vitro growth of H37Rv, but essential for in vitro growth on cholesterol; by sequencing of Himar1-based transposon mutagenesis (See Griffin et al., 2011). Check for mutants available at TARGET website |
Coordinates
| Type | Start | End | Orientation |
|---|---|---|---|
| CDS | 3917998 | 3919200 | - |
Genomic sequence
Feature type
Upstream flanking region (bp)
Downstream flanking region (bp)
Update
Protein sequence
>Mycobacterium tuberculosis H37Rv|Rv3499c|mce4A
MSGGGSRRTSVRVAAALLAGLMVGSAVLTYLSYTAAFTSTDTVTVSSPRAGLVMEKGAKVKYRGIQVGKVTDISYSGNQARLKLAIDSGEMGFIPSNATVRIAGNTIFGAKSVEFIPPKTPSPKPLSPNAHVAASQVQLEVNTLFQSLIDLLHKIDPLETNATLSALSEGLRGHGDDLGALLSGLNTLTRQANPKLPALQEDFRKAAVVANVYADAAGDLNTVFDNLPTINKTIVDQKDNLNDTLLATIGLSNNAYETLAPAEQNFIDAINRLRAPLKVTSDYSPVFGCLFKGIARGVKEFAPLIGVRKAGLFTSSSFVLGAPSYTYPESLPIVNASGGPNCRGLPDIPTKQTGGSFYRAPFLVTDNALIPYQPFTELQVDAPSTLQFLFNGAFAERDDF
Bibliography
- Arruda S, Bomfim G, Knights R, Huima-Byron T and Riley LW [1993]. Cloning of an M. tuberculosis DNA fragment associated with entry and survival inside cells. Sequence
- Cole ST et al. [1998]. Deciphering the biology of Mycobacterium tuberculosis from the complete genome sequence. Sequence Secondary
- Tekaia F et al. [1999]. Analysis of the proteome of Mycobacterium tuberculosis in silico. Secondary
- Haile Y et al. [2002]. Mycobacterium tuberculosis mammalian cell entry operon (mce) homologs in Mycobacterium other than tuberculosis (MOTT). Homolog Function
- Panigada M et al. [2002]. Identification of a promiscuous T-cell epitope in Mycobacterium tuberculosis Mce proteins. Gene
- Betts JC et al. [2002]. Evaluation of a nutrient starvation model of Mycobacterium tuberculosis persistence by gene and protein expression profiling. Transcriptome
- Sassetti CM et al. [2003]. Genes required for mycobacterial growth defined by high density mutagenesis. Mutant
- Sassetti CM and Rubin EJ [2003]. Genetic requirements for mycobacterial survival during infection. Mutant
- Mawuenyega KG et al. [2005]. Mycobacterium tuberculosis functional network analysis by global subcellular protein profiling. Proteomics
- Kendall SL, Withers M, Soffair CN, Moreland NJ, Gurcha S, Sidders B, Frita R, Ten Bokum A, Besra GS, Lott JS and Stoker NG [2007]. A highly conserved transcriptional repressor controls a large regulon involved in lipid degradation in Mycobacterium smegmatis and Mycobacterium tuberculosis. Regulation
- Van der Geize R et al. [2007]. A gene cluster encoding cholesterol catabolism in a soil actinomycete provides insight into Mycobacterium tuberculosis survival in macrophages. Function
- Song H, Sandie R, Wang Y, Andrade-Navarro MA and Niederweis M [2008]. Identification of outer membrane proteins of Mycobacterium tuberculosis. Localization
- Griffin JE et al. [2011]. High-resolution phenotypic profiling defines genes essential for mycobacterial growth and cholesterol catabolism. Mutant
- de Souza GA et al. [2011]. Bacterial proteins with cleaved or uncleaved signal peptides of the general secretory pathway. Proteomics
- DeJesus MA et al. [2017]. Comprehensive Essentiality Analysis of the Mycobacterium tuberculosis Genome via Saturating Transposon Mutagenesis. Mutant
- Minato Y et al. [2019]. Genomewide Assessment of Mycobacterium tuberculosis Conditionally Essential Metabolic Pathways. Mutant
